Portable fuel oil burner



L i 1' I 4'52: E W I I 1/3 22 "1 I i I' l I H s 3 l L: 6 i i 1.9 w M l Oct. 15, c J- RAMSEY roauaw mm. on. wanna Filed May 20, 1937 fgf/PS 56y RNEY Patented Oct. 15, 1940 UNITED STATES PORTABLE FUEL 01L BURNER.

Charles J. Ramsey, St. Louis, Mo.

Application May 20,

1 Claim.

This invention relates to a portable fuel oil burner and it consists in the constructions, arrangements, and combinations herein described and claimed.

It is an object of the invention to provide a burner wherein secondary air is admitted medially of the fire pot through a down-draft air pipe.

It is also an object of the invention to provide a novel form of oil and primary air feeding means.

It is a still further object of the invention to provide a burner which may be readily installed in a custom built heater and which will be economical in manufacture.

Additional objects, advantages and features of invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein- Figure l is an elevational view of a heater partly in section, showing my burner installed.

Figure 2 is a top plan view.

Figure 3 is a cross section on the line 33 of Fi 1.

Figure 4 is an enlarged detail of the primary air duct.

There is illustrated a heater H) which may be of any approved construction, but in the present instance, is shown as of circular formation and having a flue l I. A pipe I2 is secured to the top plate l3 of the heater, extending downwardly into the heater and intermediate of its length there is mounted a balile plate H. The baiiie plate ll will be positioned upon the pipe l2 at a point on a line adjacent the upper edge of a deflector plate presently to be described. By positioning the baflle plate H as shown, the name from the burner will be deflected laterally of the burner" at points below the top of the burner, and the deflector 28 prevents excessive heat from damaging the reservoir 22 or causing overheating and possible ignition of the fuel therein. The pipe 12 is positioned in the medial vertical axis of the heater, and acts as a secondary air supply, as will be more readily understood as the description proceeds. The amount of air passing into the heater by 'way of the pipe I2 may be controlled by a regulator II.

A fire-pot I8 is positioned within the heater 18 supported fixedly upon the base ll thereof and immediately below the air pipe l2. The fire pot is of a height extending upwardly above the lower end of the pipe, so that air discharged from the pipe will be. directed downwardly into the pot. The fire-pot may be lined with asbestos or fireclay l8, as desired.

A stand I! is employed, connected at one end 1937, Serial No. 143,826

to the heater, as at 20,. the other end having legs 2|, and upon the stand a fuel reservoir 22 is supported. A fuel outlet 23 is formed in the base of the reservoir to which a fuel line 24 is connected, and in this line there is a safety or control valve 25 for regulating the flow of fuel.

'A primary air duct 26 is suitably mounted in the wall of the heater circumscribing the fuel line 24, one end opening exteriorly-of the heater, the other end being presented through an aperture of the fire-pot l6.' The end disposed within the fire-pot is given a downward'bend as at 21,

so as to direct air downwardly, and the fuel pipe 2 is similarly shaped. If desired, the duct 26 may include a cap 26, disposed over the exterior portion thereof, the cap, having apertures 26a for regulating the amount of air passing therethrough.

A heat deflector plate 28 is mounted upon the stand 18, interposed between the reservoir and 20 the heater. The deflector plate 28 is arcuateshaped, conforming to the exterior of the heater and is spaced quite close thereto, forming an air space 29. The plate 28 is apertured to admit the fuel line and partially houses the entrance opening of the duct 26. I

The operation The operation will be understood from the following description. The fuel oil in the reservoir 22 will feed by action of gravity into the base of the fire pot l6 through the feed line 24, the flow being controlled through adjustment of the valve 25. Theair in the fire-pot mixes with air admitted through the air duct 28, forming a combustible mixture which is now ignited. A draft in the heater I0 is created by virtue of the flue I l, drawing 'a secondary air charge into the .flre-pot through the tube l2. The baflie plate ll deflects the flame to the sides of the heater effecting uniform distribution of heated air into a room as well as to the air space 29. It' will be seen that the air passing between the heater and the de-' flector 28 will be heated and rise upwardly therebetween, so that overheating of the reservoir 22 is avoided.

While I have shown and described a preferred form of heater, this is by way of illustration only, and I consider, as my own all such variations in structure as fairly fall within the scope of the appended claim.

, I claim: 8 v

A heater of the character described comprising 7 a casing having a top portion, a valved air tube V extending medially from the top downwardly 55 as v sop

into the casing, a. fire-pot in the casing. said flrepot having considerable height so as to project above the lower end of the air tube, a baffle plate on the air tube spaced between the upper edge of the fire-pot and the top of the heater, and means'for simultaneously feeding fuel and air into said fire-pot below the lower end of the air tube, said means comprising concentric nozzles extended through the casing and fire-pot and terminating in downturned ends disposed a short distance above the bottom of the fire-pot.

CHARLES J. RAMSEY. 

